hwmon: (adm1026) Properly terminate sysfs groups

The missing NULL at the end of two sysfs file groups causes a kernel
crash when calling sysfs_create_group().

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
index 8002f68..b3e6b06 100644
--- a/drivers/hwmon/adm1026.c
+++ b/drivers/hwmon/adm1026.c
@@ -1624,6 +1624,7 @@
 	&dev_attr_temp3_crit_enable.attr,
 	&dev_attr_temp3_auto_point1_pwm.attr,
 	&dev_attr_temp3_auto_point2_pwm.attr,
+	NULL
 };
 
 static const struct attribute_group adm1026_group_temp3 = {
@@ -1639,6 +1640,7 @@
 	&sensor_dev_attr_in9_max.dev_attr.attr,
 	&sensor_dev_attr_in9_min.dev_attr.attr,
 	&sensor_dev_attr_in9_alarm.dev_attr.attr,
+	NULL
 };
 
 static const struct attribute_group adm1026_group_in8_9 = {